Auxiliary locomotive



Patented Dec.

aromi) J. meenam, Ja., er

Barnmnnn, PENNSYLVANIA, AssIeNon To Barnujm-srnar. conrm. .y Y. A

i' nuxnranx Loconomrvr..

Application, mea April 19, 1926. serial No. 102,916." Y

My invention relates to auxiliary propulsionedevices for locomotives and it as for an object to provide improved apparatus of thischaracter wherein power shall be ap-V plied to at least one oftheload-bearing axles of a tender truck, such ower being received from a propeller sha'llt, which, in turn, is driven by 4an auxiliary motor or engine carried by the locomotive proper.

A further object of my invention isto provide apparatus of the character referred to wherein the auxiliary propulsion motor or engine shall be mounted on a saddle frame `pivotally mounted on the load-bearmg axle 15 of a trailer truck.

In the application'of auxiliary propulsion motor devices'to tendertrucks, such trucks have tobe specially designed in order that the motor and associated devices may bey accommodated. In accordance with my present invention, I a ply power to at least one of the wheeled oad-bearing axles of the tender truck, but I have the lauxiliary motor or engine carried by the locomotive proper, whereby a truck of standard design and with very little modification may be used with my arrangement. `I prefer to apply power to at least onel of the load-bearing axles of of a tender truck for the reason'that the weight of the tender isutilized to give increased tractive effort and for the further reason that `the pressure of the tender truck wheels on rails ismore uniform,that is, such pressure is'not varied due to pitching eiects. I prefer to mountthe auxiliary propulsion motor on the u per side of a frame pivotally mounted on the load-bearing axle #of the trailer truck.4 A suitable propeller shaft device, including uniyersal joints, is employed to connect-the'. crank shaft of the auxiliary propulsion motor orengine to at least one of the wheeled` load-bearing axles ofthe tender truck. Preferably, the wheeled load- 4 bearing axles ofthe tender truck are condirect application of powerv to one ofthe axles by the auxiliary propulsion motor or engine also results `in the application of power vto the other of said/axles.

. These and other objects @reenacted by Acarried by the locomotivejproper.

nected by linkage mechanism so that, the

claims, taken in A, Fig. '1 is a diagrammatic viewv showin a locomotive'r'ln side elevation with my 1mproved auxiliary propulslon mechanismpap- 4plied thereto.

Fig. 2 is a detail plan view showing the auxiliary propulsion motor or engine; and Fig. `3 is a vertical longitudinal sectional elevation taken' on the centerline of a trailer truck of standard design, dotted lines the manner of saddle frame to the trailer truck frame.

Referring now to the drawings more in detail,I show a locomotive at 10- connected by any suitable means at 11 to a tender truck 12. The locomotive includes the usual trailer truck 13 having a load-bearing axle 13 and wheels 14. The tender is `supported by a plurality of trucks 15 'each of which preferably includes a pair of load-bearing axles 16 and 17A sustained by wheels 18.

Referring to Fig. 1, it will be seen that theload-bearing axles 16 and 17 ofthe forward tender truck are connected by suitable linkage vmechanism so that, should ower be applied to one of the axles, it will e transmitted to the other of said axles. For exillustrating in I attaching the ample, I show the axles providedv with suitlinks 20.

Thev rear tender truck may also be connected by similar linkage mechanism` as shown, although this may be dispensed with if desired. i One of the load bearing axles 16 or 17, preferably the former, has connected thereto, between the wheels, la ear 21, -which meshes with a gear 22 carrie by a pro ller shaft device 23, the latter being driven y anv i yauxiliary propulsion motor or engine I prefer toy have the auxiliary propulsion motor or engine at A24 mounted upon the 'load-bearing axle 13 ofthe trailer truck;

and, to this end, Ishow a saddle frame 26 secured tothe trailer truck frame by means of tie bars 26 and 26 andpivoted or 'ourlnaled at 27 `substantially midway o its length upon vthe axle 13. Any suitable means, for example, a lstrut member or plate 28 cooperates to. holdthe frame 26 in place with respect to the `axle v13.

'The saddle frame`26'has mounted thereon n a reciprocating. engineer motor of conventional. design, this motor including a cylintendertruck structure.

der 30, arranged transversely of the axle 13, and having its piston connected to a piston rod 31, the latter also being connected to the cross head 32, which fits cross head guides 33 and 34 carried by the saddle frame 26. The cross head 32 is connected by the connecting rod 35, to a crank 36 on a crank shaft 37 journalcd in bearings 38 carried by the frame 26. 1

Since the crank shaft 37 Ais arranged substantially parallel to the load-bearing axle 13, I refer to connect the crank shaft to one o the load-bearing axles of the tender truck by the propeller shaft device 23 alvready referred to and which will now be more fully described.

The crank shaft 37 is provided with a driving bevel gear 40, which meshes with a bevel gear 41 carried by the forward se."- tion 42 of the propeller'shaft device. The forward section 42 of the propeller shaft device is journalcd in a bearing 43 carried bv an upwardly extending lug or projection 44 at the rear` end of the saddle frame 26. The forward portion 42 of the propeller shaft device is connected by a universal joint 45 to the intermediatetelescoping shaft sections 46 and 46" of the propeller shaft device to allow for the movement of the draft rigging connection between the locomotive and the tender, the other end of the intermediate shaft section 46 being connected by universal joint 47 to a rearward. shaft portion 48 having the bevel gear 22 thereon which meshes with the bevel gear 21 on the load-bearing axle 16. As will be seen from Fig. 2, the rearmost shaft section 48 is preferably journaled in a casing construction 50 mounted on the truck axle 16.

From the construction described, it will be apparent that I have provided an arrangement wherein the auxiliary propulsion motor or engine may be mounted onthe trailer truck of the locomotive while power is applied to the tender truck thereof, without `involving very much modilication of the The arrangement of the pro eller shaft deviceincluding the universal ]oints 45 and 47 assures that articulated movement of the tender with respect tothe locomotive may take place without disturbing the transmission of power from the auxiliary propulsion motor or engine, mounted on the trailertruck, to one of the load-bearing axles of the tender truck.

While I have shown my invention in but one form, it will be obvious to those skilled in the art that it is not so limited, but is susceptible of various other changes and modifications without departing from the spirit thereof, and I desire, therefore. that only such limitations shall be placed thereupon as are imposed by the prior art or as alre specifically set forth in the appended c a1 Having thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. In a locomotive arrangement, the combination of a plurality of load-bearing axles, a saddle frame pivotally mounted on one of said axles, a reciprocating engine carried by the frame and including a crank shaft arranged.substantially parallel to the axle supporting said frame, a propeller shaft device, gearing between the propeller shaft device, and the crank shaft, and gearing between the other end of the propeller shaft device and the other of SaidlOad-bearing axles.

2. lIn a locomotive arrangement including a locomotive and a tender, the combination of a tender truck having wheeled load-bearing axles, an auxiliary propulsion motor carried by the locomotive, and means for transmitting motion from the motor to one of said axles.

'3. In a locomotive arrangement includinga locomotive and a tender, the combination of a tenderv truck having wheeled load-bearing axles, a reciprocatin engine carried by the locomotive and inc uding a crank shaft extending transversely thereof, a propeller shaft device, gearing between one end of the propeller shaft device and the crank shaft and gearing between the other end of the propeller shaft device and one of the axles of the tender truck.

4. In a locomotive arrangement including a locomotive and a tender, the combination of a tender truck having wheeled load-bearing axles, a trailer truckv for the locomotive, an auxiliary pro ulsion motor mounted on the trailer truc and means for transmitting motion from the motor to one of said tender truck axles.

5. In a locomotive arran ement including a locomotiveand la ten er, the combi-- nation of a tender truck having a plurality of wheeled` load-bearing axles, a trailer truck including a wheeled load-bearing axle, a saddle frame pivotally mounted on the load-bearing axle of the. trailer truck, an auxiliary propulsion motor carried by the saddle frame, and means for transmittin motion from the motor to one of the loa -bearin axles of the tender truck.

6. In a ocomotive arran ement including a locomotive and a ten er, the combinationof a tender truck having a plurality of wheeled load-bearing axles, link mechanism for connecting said axles, a trailer truck for the locomotive and including a wheeled load-bearing axle, a saddle frame pivotally mounted on the trailer truck, a reciprocating engine carried'by the saddle frame and inclu ine' a crank shaft arranged substantially parallel to the load-bearing axle of the trailer truck, a propeller shaft device, gearing between-one end of the propeller shaft device and the crank shaft, and gearing between the other end of the propeller shaft device and one of the loadbearing axles of said tender truck.

7. In a locomotive arrangement including a locomotive and a tender, the combination of a tender truck having load-bearing axles, a trailer truck for the locomotive, an auxiliary propulsion motor carried by the trailer truck,and a telescopinfr connection for transmitting motion I`liom the motor to one of the axles of the tender truck.

8. In a locomotive arrangement including a locomotive anda tender, the combination of a tender truck having load-bearing axles, a trailer truck for the locomotive, a saddle frame mounted on said trailer truck, an auxiliary propulsion motor carried by the saddle frame, and a telescoping connection for transmitting motion from the motor on the saddle frame to one of the axles of the tender truck.

9. In a locomotive arrangement includ-v ing a locomotive and a tender, the combination of a tender truck having load-bearing axles, a trailer truck for the locomotive,

an auxiliary propulsion motor mounted on `the trailer truck, a telescoping propeller an auxiliary propulsion motor mounted on the trailer truck, a telescoping propeller shaft driven by the motor and extending transversely of said load-bearing axles, and gearing for connecting the propeller shaft to one of said axles.

In testimony whereof I hereunto aflix `my signature this 5th day of April 1926'.

RICHARD J. MCCARTY, Jn. 

